I suspect it's the bus speed and better OS support and drivers for the graphics chip. PPC 2002 didn't offer much support for better graphics chips.
This lets think that the 1st increase (from 3970 to 5450) may come from a different graphic chip (and/or from the wider memory bus), and that the 2nd increase (from 5450 to 2215) could come from the doubled single memory card used (while 256 MB were used in each of the 3 PDAs, they were in one single card in the 2215).
Don't mind if my question looks silly, but have you an answer?
Paris, Fri 25 Jul 2003 16:24:25 +0200
edited (title) 16:45:45